Removing conformal coatings from a printed circuit board (PCB) is a hard process to do well. Removing Parylene coating is even more difficult.
The problems are many but a key reason is that the Parylene coating itself is chemically inert. It has a very high chemical resistance so the solvents don’t work well. This means any chemical attack tried with solvents or other liquid chemicals on the Parylene is as much likely to damage the circuit board than remove the actual coating.
This leaves the basic option of mechanical abrasion.
Mechanical Abrasion
Mechanical abrasion is a well known method for Parylene Removal. It can be done crudely by scraping off the Parylene with a knife or tool. Or, removal can be done with a media blast system like a Vaniman Problast system that gradually erodes the Parylene coating away.
However, mechanical abrasion is a time consuming process and is highly skilled. Also, it tends to be a localised repair and removal technique.
The concept of completely removing all of the Parylene off a circuit by mechanical abrasion is considered almost impossible unless a ridiculous amount of time and effort is injected into the process.
Find out now how much money you can save by using our Parylene removal service
We are happy to provide a quotation for removing Parylene through our coating services so you can see for yourself how much you can save.
Contact us now to request your quotation for complete removal of Parylene from a circuit board. Or, give us a call at (+44) 1226 249019 or email your inquiries at sales@schservices.com
